Maybe you are wrong, Bayern Munich managed to win the title last season dramatically after Dortmund failed to win their last match by having the same points but Bayern Munich was ahead on Agg goals.
In terms of quality, I think Bayern Munich this season is better than last season, but this season they often cannot maintain their consistency and also on the other hand, their competitor this season is Leverkusen and the Leverkusen team has strength and consistency throughout this season so now they have managed to become leaders of the standings. while the Bundesliga.
In Bayern Munich's last 3 matches, it is clear that they are in decline in form, even though they have managed to win 2 of their last 3 matches, but in terms of quality their team seems to be in decline and they are having difficulty winning matches even though they are against lower level teams.
I think Tauchel must be able to evaluate and improve the performance of the Bayern Munich team otherwise their percentage of being able to defend the title will become smaller.
Over the years, every season, we've seen certain teams leading the top chart of the Bundesliga and there's been some levels of consistency especially for Munich who's most of the time finished at the first position. Before now, Leverkusen and Stuttgart weren't even seen near the top four, it was always a Munich, Dortmund show but there's been much of a difference this season.
Now there's a kinda rub shoulders between these teams, Leverkusen and Stuttgart who's been on the sidelines for seasons have now come up to be competitive for the trophy. Since the season began, they've been able to be threats to the trophy race, Munich now have to be extra cautious in their games too. They've lost twice in a row and it's kept the ints between them and Leverkusen.
Also for Stuttgart who's been doing their best to keep their spot in the top 4 space. It's very much impression that this season took a different turn in the Bundesliga. Leipzig and Dortmund still have to strive to regain back their usual space on the table because currently, they're seemingly below the top 3, although with not much points difference which they still have a chance to meet up with.